With October 2018 release of Acrobat, converting EMF files to PDFs is disabled. If you try to convert an EMF file to PDF using Acrobat, you see a message saying that it’s an unsupported file type.

Impacted versions

Product Version
Acrobat DC 19.008.20071.303822
Acrobat 2017 17.011.30105.303785
Acrobat 2015 Classic 15.006.30456.303786

If you still want to enable the ability to convert EMF files to PDFs, create a registry key (Windows) as mentioned below.

Solution: Create a feature-specific registry key on Windows

  1. Quit Acrobat application if it's already running.

  2. Open the registry editor -  go to Run (Windows menu + R), type regedit.exe in the Open field and click OK.

  3. In the registry editor, based on your installed version of the product, go the version-specific location listed below, and create the key FeatureState at the location; the key may not be present by default.

    For Acrobat DC (Continuous):

    • Location: HKEY_LOCAL_MACHINE\SOFTWARE\(Wow6432Node)\Adobe\Adobe Acrobat\DC\FeatureState

    For Acrobat DC (Classic - Acrobat 2017):

    • Location: HKEY_LOCAL_MACHINE\SOFTWARE\(Wow6432Node)\Adobe\Adobe Acrobat\2017\FeatureState

    For Acrobat DC (Classic - Acrobat 2015):

    • Location: HKEY_LOCAL_MACHINE\SOFTWARE\(Wow6432Node)\Adobe\Adobe Acrobat\2015\FeatureState
  4. Under FeatureState, create a key of type DWORD and name it BlockEMFParsing. Change its value to 0 (zero).


    When the value of BlockEMFParsing is:

    • 0: Conversion of EMF to PDF is enabled in Acrobat
    • 1: Conversion of EMF to PDF is disabled in Acrobat

  5. Close the registry editor.